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1 | |
2 | // (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000. | |
3 | // Use, modification and distribution are subject to the Boost Software License, | |
4 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
5 | // http://www.boost.org/LICENSE_1_0.txt). | |
6 | // | |
7 | // See http://www.boost.org/libs/type_traits for most recent version including documentation. | |
8 | ||
9 | #ifndef BOOST_TT_IS_POD_HPP_INCLUDED | |
10 | #define BOOST_TT_IS_POD_HPP_INCLUDED | |
11 | ||
12 | #include <cstddef> // size_t | |
13 | #include <boost/type_traits/detail/config.hpp> | |
14 | #include <boost/type_traits/is_void.hpp> | |
15 | #include <boost/type_traits/is_scalar.hpp> | |
16 | #include <boost/type_traits/intrinsics.hpp> | |
17 | ||
18 | #ifdef __SUNPRO_CC | |
19 | #include <boost/type_traits/is_function.hpp> | |
20 | #endif | |
21 | ||
22 | #include <cstddef> | |
23 | ||
24 | #ifndef BOOST_IS_POD | |
25 | #define BOOST_INTERNAL_IS_POD(T) false | |
26 | #else | |
27 | #define BOOST_INTERNAL_IS_POD(T) BOOST_IS_POD(T) | |
28 | #endif | |
29 | ||
30 | namespace boost { | |
31 | ||
32 | // forward declaration, needed by 'is_pod_array_helper' template below | |
33 | template< typename T > struct is_POD; | |
34 | ||
35 | template <typename T> struct is_pod | |
36 | : public integral_constant<bool, ::boost::is_scalar<T>::value || ::boost::is_void<T>::value || BOOST_INTERNAL_IS_POD(T)> | |
37 | {}; | |
38 | ||
39 | #if !defined(BOOST_NO_ARRAY_TYPE_SPECIALIZATIONS) | |
40 | template <typename T, std::size_t sz> struct is_pod<T[sz]> : public is_pod<T>{}; | |
41 | #endif | |
42 | ||
43 | ||
44 | // the following help compilers without partial specialization support: | |
45 | template<> struct is_pod<void> : public true_type{}; | |
46 | ||
47 | #ifndef BOOST_NO_CV_VOID_SPECIALIZATIONS | |
48 | template<> struct is_pod<void const> : public true_type{}; | |
49 | template<> struct is_pod<void const volatile> : public true_type{}; | |
50 | template<> struct is_pod<void volatile> : public true_type{}; | |
51 | #endif | |
52 | ||
53 | template<class T> struct is_POD : public is_pod<T>{}; | |
54 | ||
55 | } // namespace boost | |
56 | ||
57 | #undef BOOST_INTERNAL_IS_POD | |
58 | ||
59 | #endif // BOOST_TT_IS_POD_HPP_INCLUDED |